plural noun
Pel·​e·​can·​i·​dae | \ˌpeləˈkanəˌdē\

Definition of Pelecanidae 

: a family formerly held to be nearly coextensive with Pelecaniformes but now restricted to the pelicans and constituting with the boobies, cormorants, and snakebirds a suborder of Pelecaniformes

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History and Etymology for Pelecanidae

New Latin, from Pelecanus, type genus + -idae

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living or existing for a long time

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